1. By the mid-1850s, sectional conflict over the extension of slavery into the Western territories threatened to tear the nation apart.With Congress sharply divided, reflecting the divisions in the nation, the Supreme Court took the unusual step of hearing the case of a fugitive slave suing for his freedom. Intended to be the definitive ruling that would settle the controversy threatening the Union for good, the case instead produced a divisive decision that pushed the nation one step closer toward the precipice of civil war. John Marshall, in his time the single most influential advocate for strong National Government, had died in 1835. President Andrew Jackson appointed Roger B. Taney (pronounced Tawney). During his tenure as Chief Justice, Taney upheld strong national power, but with some modifications. Taney endorsed what is known as “dual sovereignty,” which implies that State and federal governments are “foreign” to each other; each is sovereign in its own right. By 1857, Taney presided over a Court that had expanded to nine justices and was divided—four Northerners and five Southerners, including Taney, sat on the bench.
2. Dred Scott was a Missouri slave. Sold to Army surgeon John Emerson in Saint Louis around 1833, Scott was taken to Illinois, a free State, and on to the free Wisconsin Territory before returning to Missouri. When Emerson died in 1843, Scott sued Emerson's widow for his freedom in the Missouri supreme court, claiming that his residence in the “free soil” of Illinois made him a free man. After defeat in State courts, Scott brought suit in a local federal court. Eleven years after Scott's initial suit, the case came before the U.S. Supreme Court.
3. The Court decided 7-2 in favor of the slave owner. Every justice submitted an individual opinion justifying his position, with Chief Justice Taney's being the most influential.
Descenting: When a person enters a free State or territory, the free status overrides